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US 8,526,453 B2Granted
Linecard and method for telecommunication
AssigneeLantiq Deutschland GmbH
InventorsFriedrich Geissler, Christian Mandl, Stephan Pruecklmayer
Life of this patent
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Abstract
Linecards and methods for processing signals are provided.
Claims27
A central unit for processing telecommunication signals, comprising:
- a plurality of interface circuits that are capable to connect subscribers lines with said central unit;
- a first signal processing unit on board the central unit including at least the following component:
- a first digital signal processor that digitally processes the telecommunication signals;
- a second signal processing unit on board the central unit that shares common functionalities with the first signal processing unit to process the telecommunication signals, wherein the second signal processing unit includes a smaller subset of components included in the first signal processing unit;
- an interface coupling the first and second signal processing units;
- and
- a control unit for coordinating use of the common functionalities from amongst the first and second signal processing units through the interface that couples the first and second signal processing units on board the central unit,
- wherein the control unit causes a portion of the functionalities of the first signal processing unit and functionalities of the second signal processing unit to be utilized such that the first and second signal processing units are operated effectively as a single processing unit,
- wherein a digital front end function of the second signal processing unit is routed to an output of a first line interface via the first signal processing unit;
- and
- the first digital signal processor of the first signal processing unit is routed to an output of the digital front end function of the second signal processing unit.
8 more elements
A method for processing telecommunication signals, the method comprising:
- receiving a telecommunication signal at a central unit, the central unit comprising a first signal processing unit and a second signal processing unit, wherein the first signal processing unit comprises a first digital signal processor, and the second signal processing unit comprises a second digital signal processor,
- wherein the first and second signal processing units provide common functionalities to process the telecommunication signals;
- wherein the first digital signal processor has more processing power than the second digital signal processor;
- determining if it is possible to process the telecommunication signal using only the first digital signal processor of the first signal processing unit or only the second digital signal processor of the second signal processing unit;
- if it is possible to process the telecommunication signal using only the first digital signal processor of the first signal processing unit or only the second digital signal processor of the second signal processing unit, respectively determining a signal path that comprises either only one of the first digital signal processor or the second digital signal processor;
- if it is not possible to process the telecommunication signal using only the first digital signal processor of the first signal processing unit or only the second digital signal processor of the second signal processing unit, determining a signal path that comprises the first digital signal processor and the second digital signal processor;
- processing the telecommunication signal corresponding to the determined signal path;
- coupling a digital front end function of the second digital processor to an output of a first line interface via the first digital signal processor;
- and
- coupling a DSP function of the first digital signal processor to an output of the digital front end function of the second digital signal processor.
7 more elements
Dependencies are inferred from the claim text.